Page 23 - 普慧2020刀把(電子書版)

HER刀把 PAT.

梯形螺牙的威力

精度
偏擺 ≤ 5µ 柄部 / Shank Type
可中心出水及端面出水 HSK-A 36
Precise Coolant Through HSK-E 49
Run Out ≤ 5µ BT 60
Jet coolant through
高扭力、夾持力強 SK 93
防塵 比4º筒夾刀把約大1.45倍 ISO 105
結合防水墊圈（選配） 比一般ER筒夾刀把約大2.3倍 超完美精度 Unmistakable Precise
（ 內徑12mm，如右表） 2倍長的超長導軌之特殊的構造 [1] 及梯形螺牙 [2] 可 The special mechanism of extra long double-length
Dust /Chip Free 形成較大之傳導力，也大幅降低了摩擦力，因此，在 guide (2) with trapezoidal thread (1) delivers a
stronger torque transmitting power but reduces
Together with 鎖緊時，也確保螺帽在刀把的中心有完美的負載。 frictional force when tightening and also ensures
Sealingg Disk Strong Clamping Force 還有其他高夾持力、高同心度、高重複精度優點，同 the perfect centering of the nut on the chuck.
(option) 145% Stronger than 4º 時短螺紋的設計也節省組裝刀把的時間。 Other then the benefits of high concentricity and
For ø12, 230% Stronger than ER repeatability with stronger clamping force, the
colllet chuck ( as the right graph ) design of shorter thread further reduces the time
needed to assembly the chuck.

穩定性 / 三點兩面夾持的優勢 Stable
全圓螺帽
高速時風切聲低 三點兩面夾持
• 夾持力平均分布在刀具柄徑
Fully Round Nut 刀把夾持扭力比較 The distribution of clamping force on the
Low Noise in High r.p.m. Transferable Torque of the HER System gripped area of the cutting tool shank
Even Distribution of clamping force on
the gripped area 單面夾持
• 夾持力只分布在B面
250
The clamping force of HER system
forces.
-195ºC 超冷處理 200 • HER系統的夾持力平均分布於A、B面。 Point B has clamping
防止變形保持精度 扭力值 Torque (Nm) 150 distributes evenly on A, B points • A面夾持力較小，刀具在筒夾內發生斷
-195ºc Cryogenic 100 刀進而造成整組刀把及筒夾損壞。
Point A has less clamping force. Cutting tool breaks easily
inside the collet and resulting in total damage of the chuck.
Treatment
Minimise deformation 50
and maintain the
accuracy. 0 6 8 10 12 14 16 耐久性 Durable 鋼珠為自由排列，會有不規則現象，在高速迴轉時，不平衡現象會顯現出來，
有轉速上的限制。
內徑 Clamping (mm) The ball bearing nut can lose its balance during high speed rotation
because the steel balls inside it are not fixed; therefore, there is a
limitation of the rotation speed.
如上圖以HER25為例所示，HER25夾持力優於熱
縮、單邊4º平肩筒夾及傳統ㄧ般ER筒夾系統。 間隙 鋼珠或螺帽本體其一硬度較高，長時間下鋼珠或螺帽本體易變形，而造成精度
變差。
以HER25為例： Gap Because the hardness of steel balls is higher than the nut body, the steel
ball can cause of the nut to deform which leads to inaccuracy and
在內徑12mm時，夾持力比4º筒夾約大145%、比 vibration during the operation after the nut has been used for a period of
正常狀態 長時間使用後 time, or improperly locked.
一般熱縮約大130%、比一般ER刀把約大230%。 Normal type After long-time
operation
HER has a larger clamping forces compare to normal
shrink fit chuck , 4º flat shoulder collet chuck and 螺帽之組裝件會留有間隙，細微之切屑會從此隙 螺帽本體為組合式，在鋼珠之部位為剛性最
traditional ER collet chuck. 縫侵入，造成螺帽損害。 差處，在過度或長時間使用下，會產生崩裂
There are small gaps among parts in ball
現象。
In the case of HER25: bearing nut units, and during machine Ball bearing nut is made up of individual
For ø12, HER is 145% better than 4º flat shoulder operation, small pieces of chips or dirt may parts, and the weakest part is where the
collet chuck, 130% better than normal shrink fit fall in and cause the nut to be unstable or steel balls located. This part may chip or
chuck, and 230% better than ER25. damaged. crack after a long period of time or
excessive of use.
HP 3µ級系列筒夾 / 扳手 / 螺帽 扭力板手

Grade HP = 3µ Torque Setting Wrench
替換接頭
Roller Bearing Head 一體式全圓板手
Roller Bearing Wrench
21